In my quest for a manual 997.1/.2 turbo, I came across a 2007 997.1 Turbo that the previous owner said was pampered. Overall, it is in great cosmetic and mechanical shape. My only issue is in the transport from one dealership to another, the car registered an range 4 over rev. The dealer believes it is a glitch, but I'm not sure. Being so recent, would you have concerns with purchasing the vehicle? Your thoughts would be appreciated. Thanks.

Current Hr: 1383.7hr
Range 1: 2617 @1382hr
Range 2: 471@1382hr
Range 3: 99@1381.7hr
Range 4: 2@1381.7hr
Range 5: 0
Range 6: 0Estimated Power: 550 bph
Estimated Torque: 570 lb-ft

Checked faults. Faults stored for low voltage in some
modules. Steering column lock fault stored; lock works
normally so this may be due to low voltage. Fault stored for
outside air blend door, diagnostics required to confirm
validity or cause.
Performed brief visual inspection. Car appears to be in
good shape. Front and rear brake rotors are grooved. Pads
are good.
Test drove car. Car feels like it has EVOMSit tune. Timing
and boost pull noted from 4500-6000rpm, diagnostics
needed to confirm reason. Overall car drives well.

 

Based on what I have read 2 is a very, very brief time at that level. My guess is whoever drove it over, drove it hard at one point. Kind of disappointing that a transport from one dealership to another would do that. You would expect them to baby the car during the move, or even better, flat bed it.

Ed

 

If the range 4 is legit, which it think it is based on the other numbers, it is still only .005 seconds at 7400 rpm and .27 seconds between 7200 and 7400 rpm. It is very easy to bang the limiter in 1st on a modified 997 turbo, and even though it hits the limiter, the inertia of the accelerating rotating assembly carries it beyond. Judging by the over-rev data, I would say this is what happened. It is unfortunate that the transporter is treating cars in this manner, but I would not worry about the over rev at all. I would be more concerned that whoever was joy riding possibly abused the clutch.

Although I would not be concerned about the range 4, I would definitely make the dealer feel like it is a near deal breaker, and use it for negotiation. Also play up your concerns about other potential damage caused by the joy ride (ie clutch). The biggest impact on value is right now. The longer you own the car and further in it's history it is, the less it means.

 

It's not a glitch. They are just trying to cover their asses and make a sale. It doesn't just accidentally register an over rev.

I agree with the assessment that the car is probably fine. However I'd be sorely tempted to tell the dealer that you don't appreciate being lied to, the car abused, and that they aren't the type of people I want to do business with on such an expensive car transaction.

 

These DMEs glitch all the time. In this case, the 2 in range 4 are almost certainly a glitch because the number is simply too small for the crank to physically be spinning at those RPM for that duration of time.

 

 

yup, if you don't shift fast enough on a tuned re-limiter-raised car, the rpm will spike well above the designated redline with the momentum of the rotating assembly

sounds like the dealer did exactly that

 

Looks like someone just took it for a spirited drive at the dealer. Can you blame them? With no recent range 5 or 6 overevs I would say you have nothing to worry about if everything else checks out. Plenty of these cars have had range 5 & 6 overevs on the DME and they are perfectly fine.

 

I agree, but the dealer saying "It's a glitch" is a bunch of crap. If this is how they treat you before they have your money... Wait until after they have it.

 

Dealer salesman is probably not educated on DMEs is my guess, but yes I agree definitely not a glitch.

 

You put way more faith in their infallibility than I do. For example, take a look at this report from this thread:



It is utterly implausible to register 2 range 6s and only 6 range 5s, again based on how fast the crank is spinning in those ranges and the fact that to brush into range 6 means it needs to fall all the way back down through range 5. And this report indicates two separate events in range 5. This is just one of dozens of reports out there with impossibly brief numbers in the upper ranges. Someone in a thread on PistonHeads a few years ago was also able to demonstrate with an engine removed from the car that it's possible to add spurious over revs. Anecdotally, it seems like cars with DME tunes are more susceptible to suspicious numbers.

I'm not saying the dealer didn't zing this car, since the range 3s are certainly real, but I strongly doubt it actually went into range 4.

 

Range 4 is fine!

You can use it to apply pressure on the price...but I wouldn't pass on the car because of it.

 

Applied pressure, but would only take $500 off. Car sold shortly after that. I will continue to enjoy my 997.1 Carrera S until another Turbo comes up for sale.

 

DME reports are overated and there is just too much unnecessary and unproven hype on this board and Rennlist about them. A dealer will use a DME report to deny service or a warranty claim, that's all. They are a service and sales gimmick and I've yet to hear or read of any 07 or newer TT with a range 4 or higher DME report that can be directly traced to a blown engine. If you like the car and it has a good service history, buy it and enjoy it! (JMO)

 

Couldn't agree more. Its getting ridiculous how much people let these reports affect their buying decision. I'm not saying some can't be bad, if you have 200 ignitions in range 6 sure pass on it, but in this case i'm sorry to the op, this car was 100% fine with no engine damage possible. The fact you passed on it because of 2 ignitions in range 4 is IMO ridiculous. Thats my opinion and i mean no disrespect.